Calendar of Upcoming Events

Below are training events currently scheduled:


  • Aug 11-12     TuGIS - Maryland's Geospatial Conference                                                             Towson, MD

                          - TBD

                *****  Due to concerns and quarantine restrictions resulting from COVID-19, most       *****

                *****  events in the near future have been cancelled or postponed.  Please practice       *****

                *****  social distancing for your safety and the safety of those around you.                 *****




What people are saying about Dave and Base 9 Geodetic Consulting Services workshops:


  • "You are the Neil deGrasse Tyson of Surveying"

  • "Great speaker!! Very informed; please come back."

  • "Always learn new things from David Doyle.""

  • "A great speaker. Very knowledgeable and easy to listen to. Lots of good information."

  • "Extremely informative. Dave is always an excellent presenter."

  • "Would like to see this seminar each year to keep updated on NSRS."

  • "Invaluable presenter with wealth of knowledge and the wisdom to make understanding content easier."

  • "Instructor extremely informative and knowledgeable. Would recommend every surveyor take his class."

  • "This course should be repeated in future conferences."

  • "Good speaker and did not talk over our heads."

  • "Very experienced, based on 'real world' experience."




You can contact these organizations, who have hosted Base 9 Geodetic Consulting Services seminars, for references/reviews:

Texas Society of Professional Surveyors - November 2019

Maryland Society of Surveyors - October 2019

Vermont Society of Land Surveyors - September 2019

Arizona Professional Land Surveyors - May 2019

Nevada Association of Land Surveyors - March 2019

California Land Surveyors Association - March 2019

Tennessee Association of Professional Surveyors - March 2019

New Jersey Society of Professional Land Surveyors - February 2019

Professional Land Surveyors of Oregon - January 2019





Videos/recordings of Dave's seminars:

-- "Relationship of and transformations between most common reference frames used in the U.S."; January 30, 2015 

-- "Modernization of the National Spatial Reference System "; March 14, 2014

-- Fundamentals of Geodesy, November 14, 2014, 4:24

-- NGS Datasheets Tips, January 12, 2015, 3:59

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